Description
Siemens Building Technology QFR9530.KIT Sensor Els PW 29614 The Dwyer Instruments 1823 00 Pressure The Dwyer Instruments 1823 00 Pressure Switch is a industrial grade solution designed for precision monitoring of air and non combustible gases in HVAC systems Proper installation preserves combustion efficiency and prevents nuisance pressure switch trips or carbon monoxide risks associated with improper fuel to air ratios in thin atmosphere conditions